ATEX Certified Explosion Proof Solenoid Valves for Hazardous Gas and Dust Areas
 | Zone 0 and Zone 20 Catagory 1. EN50014:1997+A1+A2 EN50020:1994 ATEX II 2 G EEx ia IIC T6 or T4 1/8BSP and 1/4BSP 2/2 and 3/2 solenoid valves ATEX EexiaIICT6 24vdc coils Media air Pressure 0 to 8 Bar. Ideal as a control valve for Zone 0 Gas and Zone 20 Dust hazardous environments THESE ARE NORMALLY IN STOCK. |  | Zone 1 and Zone 21 Catagory 2. Compliance EN50014:1997+A1+A2 EN50028:1987 EN50271-1-1:1998 Atex II 2 G Eexm II T4...T6 and II 2 D IP65 T80C, T95C and T130C ATEX EexmIIT4 Encapsulated coils from 12vDC to 230vAC to suit a wide range of solenoid valves. THESE ARE NORMALLY IN STOCK. |  | Zone 1 and Zone 21 Catagory 2. Cenelec Standard 50018 EexdIICT6 Flameproof Connexion offer an extensive range of ATEX EexdIICT2 to T6 Flameproof Options for a huge range of Brass and Stainless steel 2/2 and 3/2 solenoid valves up to 500 BAR Sizes from 1/8 BSP to DN300 flange. All voltage options and special requirements are available. |
See below for The Connexion Guide to Hazardous Areas. Or try our valve search guide on the top right, choose the ATEX level of safety you require first and then from there reduce the available valve options. Or simply contact us for FREE ADVICE + ASSISTANCE. Or Try our Product Selector on the Top Right Hand Side of this Page. | | | | Equipment For Mines Group 1 | | Firedamp Content | Any Firedamp Content | Beyond Limiting Value | Catagory of equipment which may be used following 94/9/CE directive | M1 | M2 | Equipment For Surface Installations Group II | | Zones | 0 | 20 | 1 | 21 | 2 | 22 | Nature Of Atmosphere | G Gas | D Dust | G Gas | D Dust | G Gas | D Dust | | Continuously Present | Not Likely To Be Present | Accidentally Present | Catagory of equipment which may be used following 94/9/CE directive | 1 | 2 | 3 |
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Zones. Hazardous areas for Group II are further divided into Zones, these Zones relate to the predicted occurence of when an Explosive Atmosphere may be present in the area. These Zones are defined as being: | Colour | Zones | Presence of Gas | | Red | 0 | Continuously present (During long periods) | | Orange | 1 | Not Likely to be present (Regular service) | | Yellow | 2 | Accidentally present (short time service never in regular service) |

Colour | Zones | Presence of Dust | Red | 20 | Continuously present (During long periods) | Orange | 21 | Not Likely to be present (Regular service) | Yellow | 22 | Accidentally present (short time service never in regular service) |

Types of ATEX Explosion Proof Protection Available from Connexion Developments Ltd Protection symbol | 0 | 20 | 1 | 21 | 2 | 22 | Description | Symbolic Drawing | EexmIIT4 "m" Cenelec EN50028 Connexion Stock Item | | | X | X | X | X | Encapsulation. Refers to a special casing in which the parts of an electrical apparatus which could ignite an explosive atmosphere by either sparking or heating are encapsulated in a compound in such a way that this explosive atmosphere cannot be ignited. |  | EexiaIICT6 "ia" Cenelec EN50020/39 Connexion Stock Item | X | X | X | X | X | X | Intrinsically Safe. Refers to a circuit in which neither sparks or temperature can ignite an explosive atmosphere. If generated under the service conditions specified by the standard regulations (Normal and faulty operating conditions) |  | EexdIICT2 - 6 "d" Cenelec EN50018 Manufactured to Order | | | X | X | X | X | Flameproof enclosure. Refers to an electrical apparatus whose explosive parts are enclosed in an explosion proof casing. This casing will resist the pressure generated by the internal explosion or an explosive mixture and will prevent the explosion from penatrating to the ambient explosive atmosphere. |  | | | | | | | | | |
Temperature Classes. Group 1 | Temperature <150 C or <450 C according to coal dust accumulation on equipment | Group II | Temperature Class for Gas (G) | Permissible surface temperature of electrical equipment | T1 T2 T3 T4 T5 T6 | 450C 300C 200C 135C 100C 85C |
Ignition Temperature for Dusts. The dust ignition temperature depends on its consistancy and its nature. The ignition temperatures for various types of dust are available from reference tables. Connexion have a few common examples below. Dusts | Ignition Temperature | Clouds | 5mm layer | Aluminium | 560C | >450C | Charcoal | 520C | 320C | Coal Dust (Lignite) | 380C | 225C | Cocoa | 590C | 250C | Coffe Grounds | 580C | 290C | Corn | 530C | 460C | Methyl cellulose | 420C | 320C | Paper Fibre | 570C | 335C | Phenolic Resin | 530C | >450C | Polyethylene | 440C | melts | PVC | 700C | >450C | Sugar | 490C | 460C | Soot | 810C | 570C | Starch | 460C | 435C | Toner | 520C | melts | Wheat | 510C | 300C |
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